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From "Willem Jiang (JIRA)" <>
Subject [jira] [Resolved] (CAMEL-6752) Bean binding to covariant methods throws AmbiguousMethodCallException
Date Mon, 16 Sep 2013 07:37:54 GMT


Willem Jiang resolved CAMEL-6752.

       Resolution: Fixed
    Fix Version/s: 2.13.0

Applied patch into master, camel-2.12.x and camel-2.11.x branches.
> Bean binding to covariant methods throws AmbiguousMethodCallException
> ---------------------------------------------------------------------
>                 Key: CAMEL-6752
>                 URL:
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-core
>    Affects Versions: 2.11.1
>            Reporter: Guy Burton
>            Assignee: Willem Jiang
>            Priority: Minor
>             Fix For: 2.11.2, 2.12.1, 2.13.0
>         Attachments: bean-binding-covariant-methods.patch
> Attached is a patch and test case for an issue in the bean binding code which prevents
binding to an overloaded method with a covariant return type from the base class. 
> The fix is to check for method covariance at the last moment before throwing AmbiguousMethodCallException.
If all methods remaining are covariant, any one of them can be called. Unfortunately this
happens in 3 places in the code- if we pre-filtered the list of methods then we could lose
annotations on either of the method signature which could be problematic depending on the
resolution type. 

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